Cutting state government spending even further would help, though it seems a political impossibility to cut enough to solve the problem.

I think it would be a political impossibility.

But that seems to be, at least for now, a political impossibility.

There's no taboo about population control - it's simply that it's dismissed by most right-thinking people as a political impossibility.

But there are two crucial provisos - besides the political impossibility of such Gladstonian rectitude.

For years, the ideal of reforming New York City's byzantine school structure seemed a political impossibility.

Unfortunately, mandating higher fuel economy for vehicles has become a political impossibility in today's Congress.

I already mentioned the seeming political impossibility of inducing First World citizens to lower their impact on the world.

A few months ago it seemed almost a political impossibility.

Since bringing an immediate halt to carbon dioxide emissions is considered an economic and political impossibility, some further rise in overall concentrations appears inevitable.